:root{--portal-primary: #0875ff;--portal-primary-dark: #0054ff;--portal-primary-light: #45a7ff;--portal-text: #212124;--portal-text-muted: #667085;--portal-bg: #ffffff;--portal-border: #e7edf5;--portal-radius-card: 20px;--portal-radius-large: 32px;--portal-shadow-card: 0 16px 50px rgb(34 91 173 / 10%);--portal-container: 1440px;--portal-section-space: clamp(56px, 7vw, 104px);--portal-header-height: 68px;--portal-font-display: "ZiXiaoHun", "ZXHZYXXT_T", "PingFang SC", "Microsoft YaHei", sans-serif;color:var(--portal-text);background:var(--portal-bg);font-family:PingFang SC,PingFang SC;font-synthesis:none;text-rendering:optimizeLegibility}@font-face{font-family:ZiXiaoHun;src:url(/fonts/zixiaohun.ttf) format("truetype");font-weight:400;font-style:normal;font-display:swap}@font-face{font-family:ZXHZYXXT_T;src:url(/fonts/zixiaohun.ttf) format("truetype");font-weight:400;font-style:normal;font-display:swap}*,*:before,*:after{box-sizing:border-box}html,body,#app{min-height:100%;margin:0}body{min-width:320px;overflow-x:hidden;color:var(--portal-text);background:radial-gradient(circle at 8% 12%,rgb(100 185 255 / 9%),transparent 30%),var(--portal-bg)}button,input,textarea{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}code{border-radius:4px;padding:2px 6px;color:#2946a7;background:#eef2ff}dt{font-weight:700}dd{margin:0}.page-shell{width:100%;margin:0 auto}.media-cover,.media-cover-surface{position:absolute;top:0;right:0;bottom:0;left:0;z-index:0;width:100%;height:100%;pointer-events:none}.media-cover{display:block;max-width:none;object-fit:cover;object-position:center}.media-cover-surface{background-repeat:no-repeat;background-position:center;background-size:cover}.primary-button,.secondary-button,.tabs button{display:inline-flex;min-height:46px;align-items:center;justify-content:center;border:1px solid #3157d5;border-radius:12px;padding:11px 22px;cursor:pointer;font-weight:600;transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease}.primary-button{border:0;color:#fff;background:linear-gradient(90deg,var(--portal-primary-dark),var(--portal-primary-light));box-shadow:0 10px 24px #0875ff3d}.primary-button:disabled{opacity:.65;cursor:not-allowed}.secondary-button,.tabs button{border-color:#c9ddf7;color:var(--portal-primary-dark);background:#ffffffeb}.secondary-button:disabled{border-color:#c8ced9;color:#8b93a3;background:#f3f5f8;cursor:not-allowed}.primary-button:not(:disabled):hover,.secondary-button:not(:disabled):hover{transform:translateY(-2px)}.text-button,.text-link{display:inline-flex;align-items:center;border:0;padding:8px 2px;color:var(--portal-primary-dark);background:transparent;cursor:pointer;font-weight:600}.text-link:hover,.text-button:hover{text-decoration:underline}.button-row,.tabs{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}.tabs{gap:10px}.tabs button{border-color:transparent;color:#526178;background:#f2f6fb}.tabs button.active{border-color:transparent;color:#fff;background:linear-gradient(90deg,var(--portal-primary-dark),var(--portal-primary-light));box-shadow:0 10px 24px #0875ff38}.empty-state,.status-note{border:1px solid #e1ebf6;border-radius:14px;padding:20px;color:#657087;background:#f5f9ff}.status-note p{margin-top:0}.status-note.success{color:#17633a;background:#eaf8f0}.status-note.error{color:#9a2235;background:#fff0f2}.page-flow{display:grid;gap:clamp(38px,5vw,72px)}.split-panel{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(260px,.9fr);align-items:center;gap:32px}.section-eyebrow,.card-label{margin:0 0 8px;color:var(--portal-primary);font-size:13px;font-weight:750;letter-spacing:.16em;text-transform:uppercase}.card-grid{display:grid;gap:18px}.two-columns{grid-template-columns:repeat(2,minmax(0,1fr))}.three-columns{grid-template-columns:repeat(3,minmax(0,1fr))}.four-columns{grid-template-columns:repeat(4,minmax(0,1fr))}.feature-card{position:relative;overflow:hidden;border:1px solid var(--portal-border);border-radius:var(--portal-radius-card);padding:clamp(20px,3vw,30px);background:#fff;box-shadow:0 10px 34px #265ba412;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease,background .18s ease}.feature-card:before{position:absolute;top:0;left:0;width:4px;height:100%;background:linear-gradient(var(--portal-primary),var(--portal-primary-light));opacity:0;content:"";transition:opacity .18s ease}.feature-card:hover{transform:translateY(-6px);border-color:#a8cef9;background:linear-gradient(145deg,#fff,#f1f7ff);box-shadow:0 20px 45px #1966d121}.feature-card:hover:before{opacity:1}.feature-card h3{margin-top:0;font-size:21px}.feature-card p,.feature-card li{color:var(--portal-text-muted);line-height:1.7}.vertical-tabs{display:flex;flex-direction:column;gap:12px}.vertical-tabs button{min-height:62px;border:1px solid transparent;border-radius:14px;padding:14px 20px;color:#536176;background:#f4f7fb;cursor:pointer;font-size:16px;font-weight:600;text-align:left}.vertical-tabs button.active{border-color:#acd1ff;color:var(--portal-primary-dark);background:linear-gradient(90deg,#e9f4ff,#f7fbff);box-shadow:inset 4px 0 var(--portal-primary)}.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}.tag-row span{border-radius:999px;padding:5px 10px;color:#3157d5;background:#eef2ff;font-size:13px}.content-meta{color:#69758b;font-size:14px}@media(max-width:1200px){.page-shell{width:100%}.four-columns{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:900px){.three-columns{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:767px){.page-shell{width:100%}.two-columns,.three-columns,.four-columns{grid-template-columns:1fr}.vertical-tabs{flex-direction:row;overflow-x:auto;padding-bottom:6px}.vertical-tabs button{flex:0 0 auto;min-height:50px}}@media(max-width:640px){.split-panel{grid-template-columns:1fr}}